Adsorption performance and mechanism investigation of Mn 2+ by facile synthesized ceramsites from lime mud and coal fly ash
作者： Jie Xu , Juan Qin , Changjin Ou , Shuxuan Li , Suwan Dai
DOI: 10.1007/S11814-020-0706-Z
关键词:
摘要: To efficiently control manganese pollution, two kinds of ceramsites with pH self-adjustment ability, being synthesized from lime mud and coal fly ash, were employed to remove Mn2+ aqueous solutions. The influence different parameters like contact time, concentration on adsorption performance was examined. Also, the mechanism removal by investigated thoroughly. results showed that maximum capacity 2.54±0.03 mg/g time required reach equilibrium about 4h. pseudo-second-order kinetic model Langmuir could better describe experimental data isotherms process, respectively. During process Mn2+, ability played a leading role in creating an alkaline environment form precipitation MnO(OH)2, which subsequently adsorbed onto surface ceramsites. This study suggests have enormous potential application for removing wastewater.
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